Process of utilizing the products of combustion of steam-boiler furnaces.



No. 740,200. PATENTED 00T. 0, 1903.

- G. A.. SGHTZ. PRocBss 0F UTILIZING THE 1210000007001* 00MBUSTI0N 0FSTEAM BOILER FURNAGES.' Y

PPLIGATION Hmm 4.1m. 4. 1002.

No Konin.. 2 sums-SHEET 1.

Zwalm? N0. 740,706. PATENTED 00T. 6, 190s.

. G. A. SGHTZ.

PROCESS 0F UTILIZING ,THE PRODUCTS 0F GMBUSTION 0F STEAM BILER FURNAGES.

APPLIGATIUN FILED AUG. 4, 1992. No xonm.. l2 SHEETS-snm s.

n w N Wneaai:

UNITED STATES :Patented October 6, 1903.

PATENT OFFICE..

GSTAV ADOLF SCHTZ, OF WURZEN, GERMANY.

PROCESS 0F UTlLlZlNG THE PRODUCTS 0F COMBUSTION 0F STEAM-BONER FURNACES.

SPECIFICATION forming part of Letters Patent No. 740,700, dated. October6, 1903.

Application tiled August 4, 1902. Serial No. 118,277` (No specimens.)

To MZ whom t may concern:

Be it known that L GUs'rAv ADoLE Scniirz, a subject of the King ofSaxony, residing aty Wurzen, in the Kingdom of Saxony, Empire ofGermany, have invented a new and useful Process of Utilizing theProducts of Combustion of Steam-Boiler Furnaces, of which the followingis a specification.

My invention relates to the utilization of the products of combustion ofsteam-boiler furnacesin connection with the steam in generation of powerand for other useful purposes, including the recovery of the carbondioxid present in said products in a convenient form for commercial useand sale.

Previous attempts have been made to utilize carbon dioxid occurring inthe products of combustion of a steam-boiler furnace in connection withsteam for power purposes before the gas is recovered for commercialuse;V but such attempts have been nnsnccessfuhforthe reason that thelubricant of the engine or motor to be driven by carbon dioxid hascontaminated the carbon dioxid and rendered it unfit for commercial use,so that a step of purification of the gas was necessary, involving theuse of separate and specially-provided apparatus for this purpose inorder to obtain gas of sufficient purity to be lit for use and sale. Ithas been shown by practical eX- periments that ordinary potash water orother alkaline lye may be employed for lubricating engines and motors,and I have availed myself of this feature in carrying out my invention.

In accompanying drawings is illustrated an apparatus for carrying outthe invention.

Figure 1 is a diagrammatic plan view of suitable apparatus for thepnrpose. Fig. 2 is sectional view.

In said drawings, A represents a boiler of ordinary constructionprovided with the usual furnace II and the smoke box or dues K for theproducts of combustion of the fuel in the furnace H. Connected with thesmoke-box K is a pumpB for withdrawing the products of combustion fromthe fines and smoke-box and forcing the same through anabsorptiontowerC. Said tower is filled with granular material L, overwhich is allowed to trickle an alkaline lye capable of absorbing carbondioxid from the products of combustion. At the top of the tower isprovided an outlet M for the unabsorbed gases. The lye for absorbing thegases is led to the toprof the tower through a suitable pipe N, whichleads fromthe boiler A. The lye trickling over the granular material inthe tower L has a large surface exposed to the gases rising through saidtower and absorbs the carbon dioxid in said gases, and thereby becomescarbonated. The carbonated lye collects in the bottom portionof thetower C, from which it is withdrawn by means of a pump D and forcedthrough a pipe O into the boiler A. In the boiler A the carbonated lyeis subjected to the heat of the furnace, and the lye is converted intosteam and carbon dioXid, which are generated at suitable pressure andconducted from the steamboiler through the pipe P to the engine or motorE. Having performed its work in the motor or engine E, the steam andcarbon dioxid are conducted to the condenser F, wherein the steam iscondensed, and thereby separated from the carbon dioxid. The latter isled into a gasometer G, where it is collected and from which it may betaken and compressed or liquefied and utilized for any of the numerouspurposes to which the said gas is applied in the arts. In thesteam-boiler the carbonated lye is reconverted into the lye and carbondioxid. From the boiler the lye is led by a suitable pipe R to theengine E for lubricating. From the above it will be seen that I havedevised an economical method and system for utilizing the waste productsof combustion and obtaining a valuable product therefrom.

What I claim as new, and desire to secure by Letters Patent, is A Theprocess of utilizing and recovering carbon dioxid from products yofcombustion, which consists in treating said products with an alkalinelye to carbonate the same, evaporating said carbonated lye, conductingthe steam and carbon dioxid so produced to a power-generator, separatingthe carbon dioxid and steam in the exhaust-gases from said generator andrecovering the carbon dioXid.

In testimony whereof I have hereunto set my hand in the presence of twowitnesses.

GUsTAv ADoLE scHTz.-

ICO

